69

Characteristics

Determination of physical and mechanical properties gabbro was made on monoliths from the quarry. Quality of raw materials was estimated in accordance with the requirements of GOST 9479-69. According to the results of laboratory and production test set:

1. Gabbro can be used as a facing stone as their physicomechanical and decorative properties meet the requirements of GOST 9479-69 and 9480-69. 2. According to the results of processing factory established that gabbro are well polished, have a clean smooth surface in black.

 
Indicators
units   measurement
Gabbro in full
1
Specific weight
g / cm3
2,9-3,05
2
Volume weight
g / cm3
2,79-3,09
3
Porosity
%
0,4-8,6
4
Water absorption
%
0,02-0,18
5
Mechanical Compressive strength
A) dry B) in the water-saturated condition
 
Kg / cm3
Kg / cm3
                        
1676-2672
1572-2899
6
Koefitsient softening
Kg / cm3
0,83-1,0
7
Frost resistance in compression
A) SSE - 35 B) SSE - 50
 
Kg / cm3
Kg / cm3
 
1534-2397
1492-2059
8

 

Repartition strength koefitsiente 0.7
A) dry B) in the water-saturated condition B) after 35 cycles of freezing F) after 50 cycles of freezing
 
Kg / cm3
Kg / cm3
Kg / cm3
Kg / cm3
 
1173-1670
1158-1679
1094-1678
1088-1441
 
 
Name of the substance andmaterial RA-226Bk/kg Th-232Bk/kg K-40 Bk/kg A(еf)Bk/kg Class application
gabbro Buka place of birthMalin areaZhytomyr region. <7 <7 380 32.3 1(first)
   
Plagioclase: 57-72
Potassium feldspar 2-9
Quartz <5
Other  <3